Both too much and too little intake of zinc can impair the immune function. In addition to this, high intake of zinc can lessen the absorption of both iron and copper which are two of the most essential minerals needed by the human body.
Based on this:
<span>High zinc intakes can inhibit the absorption of copper is a true statement.</span>
Answer:
Number of moles = 2.8 mol
Explanation:
Given data:
Number of moles of water = ?
Volume of water = 50 mL
Density of water = 1.00 g/cm³
Solution:
1 cm³ = 1 mL
Density = mass/ volume
1.00 g/mL = mass/ 50 mL
Mass = 1.00 g/mL× 50 mL
Mass = 50 g
Number of moles of water:
Number of moles = mass/molar mass
Number of moles = 50 g / 18 g/mol
Number of moles = 2.8 mol
Answer: longer wavelength and lower energy.
Explanation:
1) The wavelength is inversely related to the frequency. So, an electromagnetic wave with lower frequency will have longer wavelength.
This is the formula for electromagnetic waves:
λ = c / ν
where λ is the wavelength, c is the speed of light, and ν is the frequency.
2) Energy is directly related to the frequency.
This is the formula E = hν,
where E is the energy, h is Planck constant, and ν is the frequency.
So, the lower the frequency the lower the energy.
3) Conclusion:
<span>An electromagnetic wave that has a lower frequency than infrared radiation will have longer wavelength and lower energy than the infrared radiation</span>
Answer:
V2 = 271.1 ml
Explanation:
Given:
P1 = 1.03 atm
V1 = 250 ml
P2 = 0.95 atm
V2 = ?
P1V1 = P2V2
V2 = (P1/P2)V1
= (1.03 atm/0.95 atm)(250 ml)
= 271.1 ml